<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<style type="text/css">
		div{
			border:#000000 1px solid
		}
		#d1{
			width: 150px;
			height: 150px;
		}
		#d2{
			width: 100px;
			height: 100px;
		}
		#d3{
			width: 50px;
			height: 50px;
		}
	</style>
	<body>
		<div id="d1">d1
			<div id="d2">d2
				<div id="d3">d3</div>
			</div>
		</div>
		<script type="text/javascript">
			let divs=document.querySelectorAll("div")
			for (let i = 0; i < divs.length; i++) {
			divs[i].addEventListener("click",f1,true)
			divs[i].addEventListener("click",f2,false)
			}
			function f1(){
				console.log(event.currentTarget.id);
			}
			function f2(){
				console.log(event.currentTarget.id);
			}
		</script>
	</body>
</html>
